Source Code
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These source-code files are part of a reconstructed copy of Luminary 96, the
original release of the Apollo 11 Lunar Module (LM) Apollo Guidance Computer
(AGC) software.
The reconstruction began with reconstructed source code for Luminary 97. Changes
between revisions 96 and 97 were backed out, as described by anomal report LNY-59.
transcribed from a digitized copy of that program. The reconstruction was
verified by matching memory-bank checksums to those listed in drawing 2021152D.
Note that page numbers in the reconstructed code match those on the Luminary 099
revision 001 printout, although the added code would likely have changed page
numbers for a real Luminary 96 listing.
Comments from the original source code are prefixed with a single '#' symbol,
whereas comments added later are prefixed by "##" or "###". Report any errors
noted by creating an
issue report at the Virtual AGC
project's GitHub repository.
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057876,000002: ## Copyright: Public domain.
057877,000003: ## Filename: ALARM_AND_ABORT.agc
057878,000004: ## Purpose: A section of Luminary revision 96.
057879,000005: ## It is part of the reconstructed source code for the
057880,000006: ## original release of the flight software for the Lunar
057881,000007: ## Module's (LM) Apollo Guidance Computer (AGC) for Apollo 11.
057882,000008: ## The code has been recreated from a previously reconstructed
057883,000009: ## copy of Luminary 97 by undoing changes described in anomaly
057884,000010: ## report LNY-59. The code has been adapted such that the
057885,000011: ## resulting bugger words exactly match those specified for
057886,000012: ## Luminary 96 in NASA drawing 2021152D, which gives relatively
057887,000013: ## high confidence that the reconstruction is correct.
057888,000014: ## Reference: pp. 1381-1385
057889,000015: ## Assembler: yaYUL
057890,000016: ## Contact: Ron Burkey <info@sandroid.org>.
057891,000017: ## Website: www.ibiblio.org/apollo/index.html
057892,000018: ## Mod history: 2019-08-04 MAS Created from Luminary 97.
057893,000019:
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Page 1381
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057895,000021: # THE FOLLOWING SUBROUTINE MAY BE CALLED TO DISPLAY A NON-ABORTIVE ALARM CONDITION. IT MAY BE CALLED
057896,000022: # EITHER IN INTERRUPT OR UNDER EXECUTIVE CONTROL.
057897,000023:
057898,000024: # CALLING SEQUENCE IS AS FOLLOWS:
057899,000025: # TC ALARM
057900,000026: # OCT AAANN ALARM NO. NN IN GENERAL AREA AAA.
057901,000027: # (RETURNS HERE)
057902,000028:
057903,000029: 5567 BLOCK 02
057904,000030: 4000 SETLOC FFTAG7
057905,000031: 4000 BANK
057906,000032:
057907,000033: 5567 0375 EBANK= FAILREG
057908,000034:
057909,000035: 5567 COUNT* $$/ALARM
057910,000036:
057911,000037: # ALARM TURNS ON THE PROGRAM ALARM LIGHT, BUT DOES NOT DISPLAY.
057912,000038:
057913,000039: 5567 00004 ALARM INHINT
057914,000040:
057915,000041: 5570 30002 CA Q
057916,000042: 5571 55363 ALARM2 TS ALMCADR
057917,000043: 5572 50002 INDEX Q
057918,000044: 5573 30000 CA 0
057919,000045: 5574 54001 BORTENT TS L
057920,000046:
057921,000047: 5575 30006 PRIOENT CA BBANK
057922,000048: 5576 00006 +1 EXTEND
057923,000049: 5577 04007 ROR SUPERBNK # ADD SUPER BITS.
057924,000050: 5600 55364 TS ALMCADR +1
057925,000051:
057926,000052: 5601 30002 LARMENT CA Q # STORE RETURN FOR ALARM
057927,000053: 5602 54061 TS ITEMP1
057928,000054:
057929,000055: 5603 10375 CHKFAIL1 CCS FAILREG # IS ANYTHING IN FAILREG
057930,000056: 5604 15607 TCF CHKFAIL2 # YES TRY NEXT REG
057931,000057: 5605 22375 LXCH FAILREG
057932,000058: 5606 15621 TCF PROGLARM # TURN ALARM LIGHT ON FOR FIRST ALARM
057933,000059:
057934,000060: 5607 10376 CHKFAIL2 CCS FAILREG +1
057935,000061: 5610 15613 TCF FAIL3
057936,000062: 5611 22376 LXCH FAILREG +1
057937,000063: 5612 15624 TCF MULTEXIT
057938,000064:
057939,000065: 5613 30377 FAIL3 CA FAILREG +2
057940,000066: 5614 74733 MASK POSMAX
057941,000067: 5615 10000 CCS A
057942,000068: 5616 15630 TCF MULTFAIL
057943,000069: 5617 22377 LXCH FAILREG +2
057944,000070: 5620 15624 TCF MULTEXIT
057945,000071:
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Page 1382
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057947,000073:
057948,000074: 5621 41036 PROGLARM CS DSPTAB +11D
057949,000075: 5622 75642 MASK OCT40400
057950,000076: 5623 27036 ADS DSPTAB +11D
057951,000077:
057952,000078:
057953,000079: 5624 56061 MULTEXIT XCH ITEMP1 # OBTAIN RETURN ADDRESS IN A
057954,000080: 5625 00003 RELINT
057955,000081: 5626 50000 INDEX A
057956,000082: 5627 00001 TC 1
057957,000083:
057958,000084: 5630 30001 MULTFAIL CA L
057959,000085: 5631 64735 AD BIT15
057960,000086: 5632 54377 TS FAILREG +2
057961,000087:
057962,000088: 5633 15624 TCF MULTEXIT
057963,000089:
057964,000090: # PRIOLARM DISPLAYS V05N09 VIA PRIODSPR WITH 3 RETURNS TO THE USER FROM THE ASTRONAUT AT CALL LOC +1,+2,+3 AND
057965,000091: # AN IMMEDIATE RETURN TO THE USER AT CALL LOC +4. EXAMPLE FOLLOWS,
057966,000092: # CAF OCTXX ALARM CODE
057967,000093: # TC BANKCALL
057968,000094: # CADR PRIOLARM
057969,000095: # ... ...
057970,000096: # ... ...
057971,000097: # ... ... ASTRONAUT RETURN
057972,000098: # TC PHASCHNG IMMEDIATE RETURN TO USER. RESTART
057973,000099: # OCT X.1 PHASE CHANGE FOR PRIO DISPLAY
057974,000100:
057975,000101: 10,3562 BANK 10
057976,000102: 10,2000 SETLOC DISPLAYS
057977,000103: 10,2000 BANK
057978,000104:
057979,000105: 10,3562 COUNT* $$/DSPLA
057980,000106: 10,3562 00004 PRIOLARM INHINT # * * * KEEP IN DISPLAY ROUTINES BANK
057981,000107: 10,3563 54001 TS L # SAVE ALARM CODE
057982,000108:
057983,000109: 10,3564 30133 CA BUF2 # 2 CADR OF PRIOLARM USER
057984,000110: 10,3565 55363 TS ALMCADR
057985,000111: 10,3566 30134 CA BUF2 +1
057986,000112: 10,3567 05576 TC PRIOENT +1 # * LEAVE L ALONE
057987,000113: 10,3570 77467 -2SEC DEC -200 B-14 # *** DONT MOVE
057988,000114: 10,3571 35006 CAF V05N09
057989,000115: 10,3572 12504 TCF PRIODSPR
057990,000116:
057991,000117: 5634 BLOCK 02
057992,000118: 4000 SETLOC FFTAG7
057993,000119: 4000 BANK
057994,000120:
057995,000121: 5634 COUNT* $$/ALARM
057996,000122: 5634 00004 BAILOUT INHINT
057997,000123: 5635 30002 CA Q
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Page 1383
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057999,000125: 5636 55363 TS ALMCADR
058000,000126:
058001,000127: 5637 50002 INDEX Q
058002,000128: 5640 30000 CAF 0
058003,000129: 5641 05574 TC BORTENT
058004,000130: 5642 40400 OCT40400 OCT 40400
058005,000131:
058006,000132: 5643 00004 INHINT
058007,000133: 5644 34752 WHIMPER CA TWO
058008,000134: 5645 60005 AD Z
058009,000135: 5646 54017 TS BRUPT
058010,000136: 5647 50017 RESUME
058011,000137: 5650 04635 TC POSTJUMP # RESUME SENDS CONTROL HERE
058012,000138: 5651 12765 CADR ENEMA
058013,000139: 5652 00004 POODOO INHINT
058014,000140: 5653 30002 CA Q
058015,000141: 5654 55363 ABORT2 TS ALMCADR
058016,000142: 5655 50002 INDEX Q
058017,000143: 5656 30000 CAF 0
058018,000144: 5657 05574 TC BORTENT
058019,000145: 5660 77770 OCT77770 OCT 77770 # DON'T MOVE
058020,000146:
058021,000147: 5661 34765 CAF OCT35 # 4.35SPOT FOR GOPOODOO
058022,000148: 5662 54001 TS L
058023,000149: 5663 40000 COM
058024,000150: 5664 52761 DXCH -PHASE4
058025,000151: 5665 00004 GOPOODOO INHINT
058026,000152: 5666 04616 TC BANKCALL # RESET STATEFLG, REINTFLG, AND NODOFLAG.
058027,000153: 5667 27755 CADR FLAGS
058028,000154: 5670 30103 CA FLAGWRD7 # IS SERVICER CURRENTLY IN OPERATION?
058029,000155: 5671 74746 MASK V37FLBIT
058030,000156: 5672 10000 CCS A
058031,000157: 5673 15701 TCF STRTIDLE
058032,000158: 5674 04616 TC BANKCALL # TERMINATE GRPS 1, 3, 5, AND 6
058033,000159: 5675 12652 CADR V37KLEAN
058034,000160: 5676 04616 TC BANKCALL # TERMINATE GRPS 2, 4, 1, 3, 5, AND 6
058035,000161: 5677 12643 CADR MR.KLEAN # (I.E., GRP 4 LAST)
058036,000162: 5700 15644 TCF WHIMPER
058037,000163: 5701 35743 STRTIDLE CAF BBSERVDL
058038,000164: 5702 04727 TC SUPERSW
058039,000165: 5703 04616 TC BANKCALL # PUT SERVICER INTO ITS "GROUND" STATE
058040,000166: 5704 57321 CADR SERVIDLE # AND PROCEED TO GOTOPOOH.
058041,000167: 5705 00004 CCSHOLE INHINT
058042,000168: 5706 30002 CA Q
058043,000169: 5707 05654 TC ABORT2
058044,000170: 5710 01103 OCT21103 OCT 1103
058045,000171: 5711 00004 CURTAINS INHINT
058046,000172: 5712 30002 CA Q
058047,000173: 5713 05571 TC ALARM2
058048,000174: 5714 00217 OCT217 OCT 00217
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Page 1384
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058050,000176: 5715 01363 TC ALMCADR # RETURN TO USER
058051,000177:
058052,000178: 5716 00004 BAILOUT1 INHINT
058053,000179: 5717 53364 DXCH ALMCADR
058054,000180: 5720 35742 CAF ADR40400
058055,000181: 5721 54061 BOTHABRT TS ITEMP1
058056,000182: 5722 50002 INDEX Q
058057,000183: 5723 30000 CAF 0
058058,000184: 5724 54001 TS L
058059,000185: 5725 15603 TCF CHKFAIL1
058060,000186: 5726 00004 POODOO1 INHINT
058061,000187: 5727 53364 DXCH ALMCADR
058062,000188: 5730 35741 CAF ADR77770
058063,000189: 5731 15721 TCF BOTHABRT
058064,000190:
058065,000191: 5732 00004 ALARM1 INHINT
058066,000192: 5733 53364 DXCH ALMCADR
058067,000193: 5734 00004 ALMNCADR INHINT
058068,000194: 5735 50002 INDEX Q
058069,000195: 5736 30000 CA 0
058070,000196: 5737 54001 TS L
058071,000197: 5740 15601 TCF LARMENT
058072,000198:
058073,000199: 5741 15660 ADR77770 TCF OCT77770
058074,000200: 5742 15642 ADR40400 TCF OCT40400
058075,000201: 5743 5155 DOALARM EQUALS ENDOFJOB
058076,000202: 5743 E7,1515 EBANK= DVCNTR
058077,000203: 5743 56067 BBSERVDL BBCON SERVIDLE
058078,000204:
058079,000205: # CALLING SEQUENCE FOR VARALARM
058080,000206: # CAF (ALARM)
058081,000207: # TC VARALARM
058082,000208:
058083,000209: # VARALARM TURNS ON PROGRAM ALARM LIGHT BUT DOES NOT DISPLAY
058084,000210:
058085,000211: 5744 00004 VARALARM INHINT
058086,000212:
058087,000213: 5745 54001 TS L # SAVE USERS ALARM CODE
058088,000214:
058089,000215: 5746 30002 CA Q # SAVE USERS Q
058090,000216: 5747 55363 TS ALMCADR
058091,000217:
058092,000218: 5750 05575 TC PRIOENT
058093,000219: 5751 00014 OCT14 OCT 14 # DONT MOVE
058094,000220:
058095,000221: 5752 01363 TC ALMCADR # RETURN TO USER
058096,000222:
058097,000223: 5753 5644 ABORT EQUALS WHIMPER
058098,000224: 13,3755 BANK 13
058099,000225: 13,2000 SETLOC ABTFLGS
058100,000226: 13,2000 BANK
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Page 1385
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058102,000228: 13,3755 COUNT* $$/ALARM
058103,000229:
058104,000230: 13,3755 44747 FLAGS CS STATEBIT
058105,000231: 13,3756 70077 MASK FLAGWRD3
058106,000232: 13,3757 54077 TS FLAGWRD3
058107,000233: 13,3760 44745 CS REINTBIT
058108,000234: 13,3761 70106 MASK FLGWRD10
058109,000235: 13,3762 54106 TS FLGWRD10
058110,000236: 13,3763 44753 CS NODOBIT
058111,000237: 13,3764 70076 MASK FLAGWRD2
058112,000238: 13,3765 54076 TS FLAGWRD2
058113,000239: 13,3766 00002 TC Q
058114,000240:
End of include-file ALARM_AND_ABORT.agc. Parent file is MAIN.agc